21. Which of the following can help reduce the effects of climate change?
A. Take a bath daily.
B. Plant more trees.
C. Stop building homes.
D. Drink 8 to 10 glasses of water a day.
22. The following are diseases from infectious organisms carried by the water EXCEPT:
A. amoebiasis B. arteriosclerosis C. cholera D. dysentery
23. The following are effects when abiotic factors changes on the ecosystem EXCEPT:
A. air pollution
B. toxic chemicals
C. water pollution
D. death to living organisms
24. Increasing population, vehicles, and growing number of factories and establishments are main
contributing factor of
A. erosion B. extinction
C. pollution
D. population
25 Which of the following protects plant from erosion and other destructive physical, biological and
chemical
activity? A. Air
B. Soil
C. Sunlight
D. Water​